Improvement in pumps



UNITED STATES PATENT OEEIcE.

BENJAMIN DOUGLAS, OF MIDDLETOVN, CONNECTICUT, ASSIGNOR TO W'.

AND B. DOUGLAS, OF SAME PLACE.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 35,802. dated July 1, 1862.

To all whom t may concern:

Be it known that I, BENJAMIN DOUGLAS,

of Middletown, in the county of Middlesex and State of Connecticut, have invented a new and useful Improvement in Pumps; and I do .hereby declare that the following is a full,

clear, and exact description of the same, reference being had to the accompanying drawings, rnaking a part of this specification, in which- Figure lis au elevation of my invention; Fig. 2, a horizontal section` ot' the same, taken in the line x x, Fig. 1; Fig. 3, a vertical section of aportion of the same, taken in theline @la Fie 1- Similar lettersof reference indicate corresponding parts in the several figures.

This invention relates to an improvement in the hanging or attaching of what are generally known as side torce-pumps.7 to the plank which holds or retains them in proper working position. Pumps of this class have hitherto had their cylinders cast with tixedbrackets by which they are attached to the plank, and consequently when attached to the plank the eduction-nozzle has only one position relatively with the cylinder and brackets-that is to say, the former cannot be changed to either side of the latter nor to its iront-and hence it is necessary to have different patterns made with the nozzle placed in different positions-fone at the right side of the cylinder, another at the left, and another projecting from its front side-in order that cylinders may be castwith nozzles at dit'- ferent points to suit the desired position of the eduction-pipe.

The object of this invention is to obtain a pump of the class specified which will admit of being so adjusted as to bring the eduction-nozzle at any desired point; and to this end I east the brackets separately, and with a groove or recess in their rings or bands which encompasses the cylinder, and have the latter cast with circumferential beads or projections to t in the grooves in the brackets, the latter being composed of two parts connected by bolts, and all arranged as hereinafter fully shown and described, whereby the cylinder may be turned in its brackets` and the desired result obtained.

To enable those skilled lin the art to fully understand and construct vmy invention, I will proceed to describe it.

A represents the cylinder of a punip, and B the eduction-nozzle, the latter being cast with the cylinder, as usual. On the pumpcylinder there are east two beads, a a, circumferentially, one being near the top and the other near the lower end of the cylinder.

C C are the brackets, which are cast separately and with rings or bands formed of two parts, b o, connected together by screw-bolts d d. The rings or bands have a recess, e, in

their inner sides, which receive the heads a of the cylinder A, as shown clearly in Fig. 3. By this arrangement the pump-cylinder is retained in the brackets, and may be prevented from turning therein by screwing up the bolts dd, so that the two parts of the rings or bands will clasp snugly the cylinder A. The brackets C C are secured to the plank D by bolts f in the usual way.

It will be seen, therefore, that by loosening the bolts ci d the cylinder may be turned so as to bring the nozzle B in any desired position, either to the right or left hand side of the cylinder, or in front of it, as may be desired.

In Fig. l the different positions of the nozzle B are indicated in red outline.

-This invention not only admits of the shifting of the position of the nozzle, but also admits oi 'a brass cylinder being used with iron brackets, as the latter are east separately from t-he cylinder. rlhe ordinary pumps of .this kind require to have the brackets of the same material as the cylinder, as they are all cast in one piece, and hence in brass pumps a considerable saving is effected, as the brackets, when of brass, form a considerable item in the expense of construction, in consequence of brass being so much more expensive than Iron.

i IIaving thus described my invention, what BENJN. DOUGLAS.

Witnesses:

JorIN M. DoUGLAs, GEORGE M. SMITH. 

